Mouse Scrolling Wheel activation in EPrime?

[Michiel Spape]

Hi David, OP & list,
Would be nice, yes, scrolling support, but alas. 

As for continuous data collection, I was sort of wondering what exactly is meant by this. For one, not many people seem to know that EPrime can collect on- and off-presses (press / release, key-down / key-up, in other programming languages) independently, so you could have something like 
Slide1 shown until key-down (default)
...do stuff here...
Slide2 shown once key-up (look up {key} nomenclature in e-basic help)

Or, if you like:
Slide1: infinite duration until {SPACE} key-down
Label1
Slide2: 1 ms duration (no sync)
If Slide2.RESP <> {-SPACE} goto Label1

Depends all on what you mean exactly by 'continuous collection'. One thing I've learnt is that you will feel very sorry for yourself if you decide to do something like this:
for I = 1 to 1000
	c.SetAttrib "CursorX" & cstr(i), Cursor.X 'this is not exactly eBasic, but you get the point
	sleep 1
next I

Cheers,
Mich

Michiel Spapé
Research Fellow
Perception & Action group
University of Nottingham
School of Psychology


-----Original Message-----
From: e-prime at googlegroups.com [mailto:e-prime at googlegroups.com] On Behalf Of David McFarlane
Sent: 23 August 2010 20:20
To: e-prime at googlegroups.com
Subject: Re: Mouse Scrolling Wheel activation in EPrime?

Stock reminder:  1) I do not work for PST.  2) PST's trained staff 
takes any and all questions at 
http://support.pstnet.com/e%2Dprime/support/login.asp , and they 
strive to respond to all requests in 24-48 hours (although current 
estimates are more like 10 days) -- this is pretty much their 
substitute for proper documentation, so make full use of it.  3) If 
you do get an answer from PST Web Support, please extend the courtesy 
of posting their reply back here for the sake of others.

That said, here is my take...

AFAIK scrolling wheel support must be built into the application, and 
I do not see PST doing that for E-Prime.  Then again, maybe you could 
do this by calling the appropriate Windows API, but that is not a job 
for beginners.

For continuous collection of mouse data, please see the MouseDevice 
topic in the online E-Basic Help, and look through the example 
programs that you may download from the PST web site.  I do not think 
they have one that does exactly what you want, but they do have 
programs that will show all the necessary techniques that you may 
then put together.  I have actually seen a demo of exactly what you 
want, so I know that EP can handle this well.

-- David McFarlane, Professional Faultfinder


>How to activate the Mouse's scrolling wheel? Clicking the wheel button
>is "ebMouseButton3", but how to activate the scrolling?
>
>Also, is there a way to continously collect data as long as as the
>mouse button is down?
>
>e.g. moving a slider bar as long as the mouse button is down (Right
>now i can only move the bar by clicking incessantly)
>
>GetState() = ebStatePress seems only able to collect 1 click....Again,
>what would the Inline look like?

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